Process for reclaiming polyester scrap



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFIC Published at therequest of the applicant or owner in accordance withthe Notice of Dec.16, 1969. 869 0.6. 687. The

- abstracts 01 Defensive Publication applications are identified bydistinctly numbered series and are arranged chronologically. The headingof each abstract indicates the number of pages of specification,including claims and sheets of drawings contained in the application asoriginally flied. The dies 0! these applications are available to thepublic for inspection and reproduction may be purchased for 30 cents a.sheet. Defensive Publication applications have not been examined as tothe merits of alleged invention. The Patent Olilce makes 1. no assertionas to the novelty ot the disclosed subject matter. PUBLISHED JAN UARY13, 1970 f T870,010 J5 PROCESS FOR RECLAIMING POLYESTER SCRAP g DavisFranklin Ward, P-O. Box 511, Kingsport, Tenn. 37662 .1 Filed Mar. 4,1968, Ser. No. 710,384 vff Int. Cl. C08g 53/22 US. Cl. 260-23 2 SheetsDrawing. 19 Pagesfipecification A method and apparatus for reclaimingamorphous and v ff.

oriented polyester scrap in such manner that the inherent viscosityvalue of the scrapis retained at a level enabling the reuse of the scrapin the production of top quality fibers. The scrap, to be reclaimed, isgenerally cut into long staple lengths, its temperature is raised closeto the fiber melting point by treating with a hot, waterfree, gaseousatmosphere, and the scrap is then cooled and pulverized preparatory formixing with virgin polyester polymer.

' Filed March 4. 1968 n. F. WARD T870,010

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